Decimal Operations and Area Calculations

This lesson covers decimal points and products, focusing on multiplying numbers by hundredths and understanding decimal placement. It explains how multiplying by hundredths affects the decimal point, making the value smaller. The lesson also includes exercises on calculating expressions, writing equivalent numerical expressions, and solving sums and differences. Additionally, it involves drawing quadrilaterals with a specified area.

What is the final product when 122 and one-tenth is multiplied by one hundredth?

• 1.221

• 0.1221

• 1.0221

• 1.2210

How does multiplying a number by one hundredth affect its decimal point?

• It moves the decimal point one place to the right.

• It moves the decimal point one place to the left.

• It moves the decimal point two places to the left.

• It moves the decimal point two places to the right.

Which expression is equivalent to six hundredths times 154 thousandths?

• 0.6 x 1.54

• 0.06 x 0.154

• 60 x 154

• 6/100 x 154/1000

What is the product of one hundredth times two hundredth?

• 0.0002

• 0.002

• 0.2

• 0.02

Calculate the value of three tenths times two-tenths.

• 6

• 0.06

• 0.6

• 0.006

What is the result of one and two-tenths times five?

• 6

• 0.06

• 60

• 0.6

What is the sum of thirty-three and one-tenth plus one and ninety-five hundredths?

• 34.05

• 35.05

• 35.5

• 34.5

Calculate the difference between thirteen and two tenths and one and seventy-eight hundredths.

• 11.52

• 10.42

• 12.42

• 11.42

What is the result of nine tenths minus 245 thousandths?

• 0.655

• 0.755

• 0.855

• 0.555

How can you draw a quadrilateral with an area of 18 square units?

• Draw a triangle with base 6 and height 6 units.

• Draw a rectangle with sides 3 and 6 units.

• Draw a circle with radius 3 units.

• Draw a square with sides 4.5 units.